Jaroidian Fireball Swarm (Jaroidia Supplement)
From D&D Wiki
|Casting time:||1 action|
|Range:||center within 300 feet of you|
Jaroidian fireballs swarm the enemy. each creature other than you in a radius up to 120 feet around the center must make a dex save DC equal to your spell save DC+3, and take 12d12+120 minus the radius in radiant damage and be blinded for up to 1 minute on a fail, or take 6d12+6d4+60 minus half the radius(rounded down) in total radiant damage and be blinded for 6 seconds on a success(ending on the end of your turn). any creatures of your choice can automatically succeed their saving throw. as an action on a creature who is blinded this ways turn, they can make a DC20 Con check to end the blindness, ending it on a success, and doing nothing on a fail. no warlocks that are not pact of the celestial can learn this spell.
At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, increase the damage on a fail by 2d12 and that of a success by 1d12+1d4 and the blindness on a fail by 6 seconds for each level above 5th. at 7th level or higher, start increasing the blindness on a success by 6 seconds for each slot above 6th, in addition to everything else already being increased.